cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A077631 Sum of terms in periodic part of continued fraction expansion of square root of -1 + 3^n.

Table of values

n a(n)
1 2
2 5
3 10
4 17
5 56
6 53
7 160
8 161
9 346
10 485
11 1850
12 1457
13 3764
14 4373
15 13468
16 13121
17 43572
18 39365
19 192642
20 118097
21 226348
22 354293
23 2646006
24 1062881
25 1871694
26 3188645
27 5646564
28 9565937
29 36393508
30 28697813
31 143274092
32 86093441
33 195407590
34 258280325
35 542628818
36 774840977

List of values

[2, 5, 10, 17, 56, 53, 160, 161, 346, 485, 1850, 1457, 3764, 4373, 13468, 13121, 43572, 39365, 192642, 118097, 226348, 354293, 2646006, 1062881, 1871694, 3188645, 5646564, 9565937, 36393508, 28697813, 143274092, 86093441, 195407590, 258280325, 542628818, 774840977]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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